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Finding the Fourth Proportional to 15,243.98, 22,811.90 and 9,318.83

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Solution

The fourth proportional to 15,243.98, 22,811.90 and 9,318.83 is: 13,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.98 : 22,811.90 = 9,318.83 : x
  2. Step 2: Convert to fraction form
    15,243.98/22,811.90 = 9,318.83/x
  3. Step 3: Cross multiply
    15,243.98x = 22,811.90 × 9,318.83
  4. Step 4: Simplify right side
    15,243.98x = 212,580,057.42
  5. Step 5: Solve for x
    x = 212,580,057.42/15,243.98
  6. Step 6: Final answer
    x = 13,945.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.